Question

general eqn of biquadratic eqn

Answer 1

ax^4+bx^3+cx^2+dx+e = 0 ,
where a not equal to 0

Answer 2

Here is the proper explanation
Equations with degree 4 are known as quartic equation.
The general equation of quartic equation is
$ax^{4}+ bx^{3} +cx^{2} +dx +e=0$
where a$\neq$0


the quartic equation with no odd power are known as Biquadratic Equation
The general equation of Biquadratic equation is
$ax^{4}+ bx^{2}+c=0$

i think now it is clear.
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